增加导入系统分类功能

app/AdminAgent/Actions/Tree/LoadSystemCategory.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace App\AdminAgent\Actions\Tree;
+
+use App\Models\Category;
+use Dcat\Admin\Actions\Response;
+use Dcat\Admin\Admin;
+use Dcat\Admin\Traits\HasPermissions;
+use Dcat\Admin\Tree\AbstractTool;
+use Illuminate\Contracts\Auth\Authenticatable;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Http\Request;
+
+class LoadSystemCategory extends AbstractTool
+{
+    /**
+     * @return string
+     */
+	protected $title = '导入系统分类';
+
+    /**
+     * Handle the action request.
+     *
+     * @param Request $request
+     *
+     * @return Response
+     */
+    public function handle(Request $request)
+    {
+		$system_cate = Category::where('agent_id', 0)->orderBy('pid')->get();
+		$system_name = $system_cate->pluck('name')->toArray();
+
+		$own_cate = Category::where('agent_id', Admin::user()->id)->get();
+		$own_name = $own_cate->pluck('name')->toArray();
+
+		$no_name = array_diff($system_name, $own_name); //找到系统有，但自己没有的分类名
+		$max_id = Category::where('agent_id', Admin::user()->id)->max('id');
+
+		Category::insert(array_map(function ($name) {
+			return [
+				'agent_id' => Admin::user()->id,
+				'name' => $name,
+				'pid' => 0,
+				'sort' => 255,
+			];
+		}, $no_name));
+
+		$own_cate = Category::where('agent_id', Admin::user()->id)->orderBy('id')->get(); //获取所有分类，包含新插入的分类
+		$system_pid = $system_cate->pluck('pid', 'name')->toArray(); //获取原来系统的PID
+		$own_id = $own_cate->pluck('id', 'name')->toArray(); //获取自己的PID，不考虑name重复的情况
+
+		foreach ($own_cate as $cate) {
+			//不是新插入的分类不处理
+			if ($cate->id <= $max_id) continue;
+
+			//如果原来系统PID不是0，则获取父类的名称，并在自己的分类中获取对应名称ID，再设置父分类
+			$sys_pid = $system_pid[$cate['name']];
+			if ($sys_pid != 0) {
+				$sys_pid_name = $system_cate->find($sys_pid)['name'];
+				Category::where('id', $cate->id)->update(['pid' => $own_id[$sys_pid_name]]);
+			}
+		}
+
+        return $this->response()->success('操作成功！')->refresh();
+    }
+
+    /**
+     * @return string|void
+     */
+    protected function href()
+    {
+        // return admin_url('auth/users');
+    }
+
+    /**
+	 * @return string|array|void
+	 */
+	public function confirm()
+	{
+		 return ['操作确认', '确定要导入系统分类吗？'];
+	}
+
+    /**
+     * @param Model|Authenticatable|HasPermissions|null $user
+     *
+     * @return bool
+     */
+    protected function authorize($user): bool
+    {
+        return true;
+    }
+}

app/AdminAgent/Controllers/CategoryController.php

@@ -2,6 +2,7 @@
 
 namespace App\AdminAgent\Controllers;
 
+use App\AdminAgent\Actions\Tree\LoadSystemCategory;
 use App\Models\AgentProduct;
 use App\Models\Category;
 use Dcat\Admin\Admin;
@@ -24,6 +25,9 @@ class CategoryController extends AdminController
 					//agent_id为0是系统分类，其它是代理商分类
 					return $model->where('agent_id', Admin::user()->id);
 				});
+				$tree->tools(function (Tree\Tools $tools) {
+					$tools->add(new LoadSystemCategory());
+				});
 				$row->column(12, $tree);
 			});
 	}